CN201696950U - Back light module - Google Patents
Back light module Download PDFInfo
- Publication number
- CN201696950U CN201696950U CN2010202464544U CN201020246454U CN201696950U CN 201696950 U CN201696950 U CN 201696950U CN 2010202464544 U CN2010202464544 U CN 2010202464544U CN 201020246454 U CN201020246454 U CN 201020246454U CN 201696950 U CN201696950 U CN 201696950U
- Authority
- CN
- China
- Prior art keywords
- convex closure
- perforate
- light source
- module backlight
- closure structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0085—Means for removing heat created by the light source from the package
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/009—Positioning aspects of the light source in the package
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model discloses a back light module which comprises a metal back board, a reflecting board, a light guiding board, an optical membrane, a light bar structure and an outer frame, wherein the metal back board comprises a base board, a side edge structure and a bending structure; the reflecting board is arranged above the base board; the light guiding board is arranged above the reflecting board; the optical membrane is arranged above the light guiding board; the light bar structure is arranged at the side face of the light guiding board; the outer frame is arranged at the outer side of the metal back board; the light bar structure comprises a circuit board and a light source arranged on the circuit board; the bending structure is provided with a first convex packing structure; the base board is provided with a second convex packing structure which corresponds to the first convex packing structure; the first convex packing structure and the second convex packing structure are used for fixing the circuit board on the side edge structure; the side edge structure is provided with a first hole which corresponds to the light source; and the outer frame is provided with a second hole which corresponds to the first hole. The back light module can prevent the light source from being damaged and can reduce the service life of the back light module since the heat quantity is accumulated in the back light module.
Description
Technical field
The utility model relates to lcd technology, relates in particular to a kind of module backlight.
Background technology
LCD is a flat-panel monitor commonly used at present, and wherein Thin Film Transistor-LCD (ThinFilm Transistor Liquid Crystal Display is called for short TFT-LCD) is the main product in the LCD.
Module backlight is the vitals of LCD.Fig. 4 is the structural representation of module backlight in the prior art, and as shown in Figure 4, this module backlight comprises reflecting plate 25, LGP 24, blooming piece 23, light source 26, circuit substrate 27, metal backing 21 and outside framework 22.Wherein, LGP 24 is positioned on the reflecting plate 25, blooming piece 23 is positioned on the LGP 24, light source 26 is arranged on the circuit substrate 27, light source 26 and circuit substrate 27 are positioned at the cavity 29 that metal backing 21 and LGP 24 surround, light source 26 and circuit substrate 27 are arranged at the side of LGP 24, and circuit substrate 27 is fixed on the metal backing 21 by thermal paste 18, and outside framework 22 is installed on the metal backing 21.
Can produce a large amount of heats when light source 26 is lighted, the heat of generation can conduct to metal backing 21 by circuit substrate 27 and thermal paste 18, by metal backing 21 heat is conducted to outside the module backlight.Along with the large scale liquid crystal display is more and more higher to the requirement of light-source brightness, module backlight has to adopt increasing light source of power or increasing light source to satisfy the needs of LCD, and adopts increasing light source of power or increasing light source will produce more heat.And the structure of the module backlight of prior art and radiating mode are difficult to satisfy the heat radiation requirement of large scale liquid crystal display, for the large scale liquid crystal display, the radiating efficiency of this module backlight is low, make heat in module backlight, produce accumulation, thereby cause the impaired and backlight module life-span of light source to be reduced.
The utility model content
The utility model provides a kind of module backlight, is used to improve radiating efficiency, thereby avoids the impaired and backlight module life-span of light source to reduce.
The utility model provides a kind of module backlight, comprise: metal backing, reflecting plate, LGP, blooming piece, lamp bar structure and outside framework, described metal backing comprises base plate, side structure and bending structure, described reflecting plate is positioned on the described base plate, described LGP is positioned on the described reflecting plate, described blooming piece is positioned on the described LGP, described lamp bar structure is arranged at the side of described LGP, described outside framework is installed on the outside of described metal backing, described lamp bar structure comprises circuit substrate and the light source that is arranged on the described circuit substrate, described bending structure is provided with first convex closure structure, described base plate is provided with second convex closure structure corresponding with described first convex closure structure, described first convex closure structure and described second convex closure structure are fixed in described circuit substrate on the described side structure, offer first perforate corresponding on the described side structure, offer second perforate corresponding on the described outside framework with described first perforate with described light source.
Described light source is a plurality of, and described first convex closure structure is corresponding with described light source, and described second convex closure structure is corresponding with described light source.
Distance between described first convex closure structure and the described side structure is identical with the thickness of described circuit substrate, and/or the distance of described second convex closure structure and described side structure is identical with the thickness of described circuit substrate.
The medial surface of described bending structure is identical with the height of described circuit substrate with distance between the medial surface of described base plate.
Being shaped as of the cross section of described first perforate is square or circular.
Being shaped as of the cross section of described second perforate is square or circular.
The width of described second perforate is greater than the width of described first perforate.
Also offer three perforate corresponding on the described outside framework with described first convex closure structure.
Being shaped as of the cross section of described the 3rd perforate is square or circular.
Described light source comprises LED source.
The module backlight that the utility model provides, metal backing comprises base plate, side structure and bending structure, bending structure is provided with first convex closure structure, base plate is provided with second convex closure structure corresponding with first convex closure structure, offer first perforate corresponding on the first convex closure structure side structure with light source, offer second perforate corresponding on the outside framework with first perforate, the heat that light source produces among the utility model embodiment can be distributed to outside the module backlight by first perforate and second perforate, improve the radiating efficiency of module backlight, thereby avoided heat in module backlight, to accumulate and the light source that causes is impaired and the module backlight life-span lowers.
Description of drawings
The structural representation of a kind of module backlight that Fig. 1 provides for the utility model embodiment;
Fig. 2 be among Fig. 1 A-A to cutaway view;
Fig. 3 be among Fig. 1 B-B to cutaway view;
Fig. 4 is the structural representation of module backlight in the prior art.
Reference numeral:
The 21-metal backing; The 22-outside framework; The 23-blooming piece;
The 24-LGP; The 25-reflecting plate; The 26-light source;
The 27-circuit substrate; 28-lamp bar structure; The 29-cavity;
211-first convex closure structure; 212-second convex closure structure; 213-first perforate;
The 214-base plate; The 215-side structure; The 216-bending structure;
221-the 3rd perforate; 222-second perforate; The 2111-medial surface;
The 2112-medial surface; The 18-thermal paste.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The structural representation of a kind of module backlight that Fig. 1 provides for the utility model embodiment, Fig. 2 be among Fig. 1 A-A to cutaway view, Fig. 3 be among Fig. 1 B-B to cutaway view, as Fig. 1, Fig. 2 and shown in Figure 3, this module backlight comprises: metal backing 21, reflecting plate 25, LGP 24, blooming piece 23, lamp bar structure 28 and outside framework 22, metal backing 21 comprises base plate 214, side structure 215 and bending structure 216, reflecting plate 25 is positioned on the base plate 214, LGP 24 is positioned on the reflecting plate 25, blooming piece 23 is positioned on the LGP 24, lamp bar structure 28 is arranged at the side of LGP 24, outside framework 22 is installed on the outside of metal backing 21, lamp bar structure 28 comprises circuit substrate 27 and the light source 26 that is arranged on the circuit substrate 27, bending structure 216 is provided with first convex closure structure 211, base plate 214 is provided with second convex closure structure 212 corresponding with first convex closure structure 211, first convex closure structure 211 and second convex closure structure 212 are fixed in circuit substrate 27 on the side structure 215, offer first perforate 213 corresponding on the side structure 215, offer second perforate 222 corresponding on the outside framework 22 with first perforate 213 with light source 26.
In the present embodiment, lamp bar structure 28 is arranged at the side of LGP 24, so the module employing backlight in the present embodiment is the side-light type light source.The light source 26 that lamp bar structure 28 comprises can be for a plurality of, and light source 26 is arranged on the circuit substrate 27, and by circuit and circuit substrate 27 conductings.The illumination that light source 26 sends is mapped on the LGP 24, and the light that light source 26 is sent by LGP 24 is converted to the employed area source of LCD.
In the present embodiment, first convex closure structure 211 is a plurality of, and second convex closure structure 212 is a plurality of, and first convex closure structure 211 is corresponding one by one with second convex closure structure 212.First convex closure structure 211 is corresponding with light source 26, and second convex closure structure 212 is corresponding with light source 26.That is to say that as shown in Figure 1, one first convex closure structure 211 and one second convex closure structure 212 are corresponding with a light source 26.Light source 26 is positioned at the cavity 29 that first convex closure structure 211, second convex closure structure 212, LGP 24 and circuit substrate 27 surround.In the present embodiment, first convex closure structure 211 and second convex closure structure 212 can obtain by the mould punch forming.
In the present embodiment, first convex closure structure 211 and second convex closure structure 212 are fixed in circuit substrate 27 on the side structure 215, thereby realize lamp bar structure 28 is fixed on the side structure 215.In the present embodiment, first convex closure structure 211 is identical with the thickness of circuit substrate 27 with distance between the side structure 215, and/or the distance between second convex closure structure 212 and the side structure 215 is identical with the thickness of circuit substrate 27.Thereby make first convex closure structure 211 and second convex closure structure 212 can be with circuit substrate 27 more firm being fixed on the side structure 215.
In the present embodiment, as shown in Figure 3, the medial surface 2111 of bending structure 216 is identical with the height of circuit substrate 27 with distance between the medial surface 2112 of base plate 214.
Preferably, being shaped as of the cross section of first perforate 213 is square or circular, and being shaped as of the cross section of second perforate 222 is square or circular.In the practical application, other shape can also be adopted in the cross section of first perforate 213 and second perforate 222, does not enumerate one by one at this.Preferably, the width of second perforate 222 is greater than the width of first perforate 213.In the present embodiment, first perforate 213 and second perforate 222 have formed a heat dissipation channel for light source 26, and the heat that light source 26 produces can be distributed to outside the module backlight by first perforate 213 and second perforate 222.
Further, it is corresponding with first convex closure structure 211 that outside framework 22 also offers the 3rd perforate 221, the three perforates 221.In the present embodiment, the 3rd perforate 221 is a plurality of, each the 3rd perforate 221 and one first convex closure structure 211.Being shaped as of the cross section of the 3rd perforate 221 is square or circular, and in the practical application, other shape can also be adopted in the cross section of the 3rd perforate 221, does not enumerate one by one at this.In the present embodiment, the 3rd perforate 221 has formed another heat dissipation channel, and the heat that light source 26 produces can conduct to the 3rd perforate 221 by first convex closure structure 211 and/or circuit substrate 27, by the 3rd perforate 221 heat is distributed to outside the module backlight.
As shown in Figure 1, in the present embodiment, lamp bar structure 28 directly can be inserted between bending structure 216 and the base plate 214, and be fixed on the side structure 215 by first convex closure structure 211 and second convex closure structure 212.
Among the utility model embodiment, the light source 26 that module backlight adopts is to be led light source.
The module backlight that the utility model provides, metal backing comprises base plate, side structure and bending structure, bending structure is provided with first convex closure structure, base plate is provided with second convex closure structure corresponding with first convex closure structure, offer first perforate corresponding on the first convex closure structure side structure with light source, offer second perforate corresponding on the outside framework with first perforate, the heat that light source produces in the present embodiment can be distributed to outside the module backlight by first perforate and second perforate, improve the radiating efficiency of module backlight, thereby avoided heat in module backlight, to accumulate and the light source that causes is impaired and the module backlight life-span lowers.In the present embodiment, can lamp bar structure be fixed on the side structure of metal backing, need not to use thermal paste, thereby reduced production cost by first convex closure structure and second convex closure structure.The structure of metal backing makes lamp bar structure to be extracted freely from metal backing and to insert easily in the present embodiment, makes assembling and to keep in repair this lamp bar structure convenient, thereby has improved operating efficiency and saved cost.Further, also can be opened in the 3rd perforate of the first convex closure structure correspondence on the outside framework, the heat that light source produces can conduct to the 3rd perforate by first convex closure structure 211 and/or circuit substrate, by the 3rd perforate heat is distributed to outside the module backlight, thereby further improved the radiating efficiency of module backlight, further avoided heat in module backlight, to accumulate and the light source that causes is impaired and the module backlight life-span lowers.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (10)
1. module backlight, comprise: metal backing, reflecting plate, LGP, blooming piece, lamp bar structure and outside framework, described metal backing comprises base plate, side structure and bending structure, described reflecting plate is positioned on the described base plate, described LGP is positioned on the described reflecting plate, described blooming piece is positioned on the described LGP, described lamp bar structure is arranged at the side of described LGP, described outside framework is installed on the outside of described metal backing, described lamp bar structure comprises circuit substrate and the light source that is arranged on the described circuit substrate, it is characterized in that, described bending structure is provided with first convex closure structure, described base plate is provided with second convex closure structure corresponding with described first convex closure structure, described first convex closure structure and described second convex closure structure are fixed in described circuit substrate on the described side structure, offer first perforate corresponding on the described side structure, offer second perforate corresponding on the described outside framework with described first perforate with described light source.
2. module backlight according to claim 1 is characterized in that, described light source is a plurality of, and described first convex closure structure is corresponding with described light source, and described second convex closure structure is corresponding with described light source.
3. module backlight according to claim 1, it is characterized in that, distance between described first convex closure structure and the described side structure is identical with the thickness of described circuit substrate, and/or the distance of described second convex closure structure and described side structure is identical with the thickness of described circuit substrate.
4. module backlight according to claim 1 is characterized in that, the medial surface of described bending structure is identical with the height of described circuit substrate with distance between the medial surface of described base plate.
5. module backlight according to claim 1 is characterized in that, being shaped as of the cross section of described first perforate is square or circular.
6. module backlight according to claim 1 is characterized in that, being shaped as of the cross section of described second perforate is square or circular.
7. module backlight according to claim 1 is characterized in that the width of described second perforate is greater than the width of described first perforate.
8. module backlight according to claim 7 is characterized in that, also offers three perforate corresponding with described first convex closure structure on the described outside framework.
9. module backlight according to claim 8 is characterized in that, being shaped as of the cross section of described the 3rd perforate is square or circular.
10. according to the arbitrary described module backlight of claim 1 to 9, it is characterized in that described light source comprises LED source.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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CN2010202464544U CN201696950U (en) | 2010-06-22 | 2010-06-22 | Back light module |
US13/165,335 US8767140B2 (en) | 2010-06-22 | 2011-06-21 | Backlight module |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010202464544U CN201696950U (en) | 2010-06-22 | 2010-06-22 | Back light module |
Publications (1)
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CN201696950U true CN201696950U (en) | 2011-01-05 |
Family
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CN2010202464544U Expired - Lifetime CN201696950U (en) | 2010-06-22 | 2010-06-22 | Back light module |
Country Status (2)
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US (1) | US8767140B2 (en) |
CN (1) | CN201696950U (en) |
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CN102620204A (en) * | 2012-03-27 | 2012-08-01 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device comprising same |
CN102661533A (en) * | 2012-04-11 | 2012-09-12 | 深圳市华星光电技术有限公司 | Backlight module and LCD (liquid crystal display) device |
CN102998844A (en) * | 2012-11-28 | 2013-03-27 | 深圳市华星光电技术有限公司 | Liquid crystal module and liquid crystal display device |
CN103133915A (en) * | 2011-11-25 | 2013-06-05 | 隆达电子股份有限公司 | Light source assembly and light source module thereof |
CN103206647A (en) * | 2013-03-25 | 2013-07-17 | 京东方科技集团股份有限公司 | Backlight module for experiment |
US20130342766A1 (en) * | 2011-03-18 | 2013-12-26 | Sharp Kabushiki Kaisha | Illumination device, display device, and television reception device |
WO2014047965A1 (en) * | 2012-09-26 | 2014-04-03 | 深圳市华星光电技术有限公司 | Reflector, backlight module and liquid crystal display |
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CN104089243A (en) * | 2014-06-16 | 2014-10-08 | 京东方科技集团股份有限公司 | Lampshade of backlight module, backlight module and display device |
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US9104068B2 (en) | 2012-03-27 | 2015-08-11 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and LCD device comprising backlight module |
CN105425462A (en) * | 2015-12-08 | 2016-03-23 | 广东长虹电子有限公司 | Four-corner lamp backlight module |
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CN104482508A (en) * | 2014-11-20 | 2015-04-01 | 瑞仪光电股份有限公司 | Lamp set |
US10067286B2 (en) | 2014-11-20 | 2018-09-04 | Radiant Opto-Electronics Corporation | Lamp device |
CN105425462A (en) * | 2015-12-08 | 2016-03-23 | 广东长虹电子有限公司 | Four-corner lamp backlight module |
CN105425461A (en) * | 2015-12-08 | 2016-03-23 | 广东长虹电子有限公司 | Single-lamp backlight module |
CN109270721A (en) * | 2018-10-26 | 2019-01-25 | 蚌埠国显科技有限公司 | A kind of non-damageable liquid crystal display die set |
CN109270737A (en) * | 2018-10-26 | 2019-01-25 | 蚌埠国显科技有限公司 | A kind of novel liquid crystal display module containing radiating block |
CN109270723A (en) * | 2018-10-26 | 2019-01-25 | 蚌埠国显科技有限公司 | A kind of novel liquid crystal display module |
CN109307953A (en) * | 2018-10-26 | 2019-02-05 | 蚌埠国显科技有限公司 | A kind of liquid crystal display die set containing reflective mirror |
Also Published As
Publication number | Publication date |
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US20110310327A1 (en) | 2011-12-22 |
US8767140B2 (en) | 2014-07-01 |
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